Is your phone's accelerometer sensor giving inaccurate results?
Then accelerometer calibration is the app for you.

So If you have problems on auto rotation like videos or games, Accelerometer Sensor Calibration App can help you restore the accelerometer sensor in few easy steps.

Accelerometer sensor can stop working due to many reason like device drop, heavy shocks, water and bad configuration. So it is very important that calibration is done from time to time.